Combined gang-punch and bending-m ach ine



(No Model.) 2 Sheets-Sheet 1.

W. H. JOHNSON.

COMBINED GANG- PUNGH AND BBNDING MACHINE. l No. 326,746. Patented Sept.v 22, 1885..

mltorneye- (No Model.) 2 Sheets-Sheet. 2.

W. H. JOHNSON.

COMBINED GANG PUNCH AND BENDING MACHINE. No. 326,746. Patelgted Sept. 22, 1885.

i 5I" MNHIIIIINII EHIINIIUI N. PETERS. Phnwuxhognphr. wunmgwn. ILC.

IA k I UNITED STATES PATENT OFFICE.

VILLIAM H. JOHNSON, OF RACINE, VISCONSIN.

COMBINED GANG-PUNCH AND BENDlNG-NIACHINE- SPECIFICATION forming part of Letters Patent No. 326,746, dated September 22, 1885. Application tiled May 4, 1855. (No model.)

T0 all whom, it may concern:

Beit known that l, W. H. JOHNSON, a citizen of the United States, residing at Racine, in the county of Racine and State of Wisconsin, have invented a new and useful Improvement in a Combined Gang-Punch and Bending- Machine, of which the following is a specifica tion, reference being had to the accompanying drawings.

My invention relates to an improvement in combined gang-punch and bending-machines; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims. l

In the accompanying drawings, Figure l is a side elevation of a machine embodying my invention. Fig. 2 is a vertical longitudinal sectional view of the same. Fig. 3 is a top plan view, and Fig. 4 is a vertical cross-sectional view taken on the line x x, of Fig. 3. Fig. 5 is a detail view of one of the journalblocks in which the actuating-shaft bears.

A represents the bed of my machine, which consists of the sides B,which are provided on their upper edges with the flanged guides or ways C. The sides are bolted to transverse span-pieces D,which are arranged one at each end and one at the center of the bed, as shown. One end of the guides or ways of each of the sides is slightly lower than the opposite end, as shown in Figs. 2 and 5, and at the extreme ends of the guides or ways are formed the upturned bearings E, through which extend the set-screws F. Near one end of the bed, in the upper edges of the sides thereof, are formed rectangular vopenings G, in which are placed solidbearing-blocksH. Thesebearing-blocks are provided with anti-friction rollers I, and in the blocks is journaled a transverse main actuating-shaft, K, to the ends of which are fixed the spurred wheels L. The bearingblocks for the shaft are bolted rigidly to the bed by means of the bolts M. Near one end of the shaft is a grooved collar, N,which is splined or feathered on the shaft, and is provided on its inner face with projecting studs O. A bent lever, P, is journaled in the span-pieces of the bed and extends to one end thereof, where it is provided with a vertical hand-levers R. The inner upturned end of this lever enters the groove in the collar.

' at their lower ends,

S represents an eccentric, which is loosely mounted on the shaft K, and is provided on one side with projections s, which engage with the projections of the sliding collar, by which means the eccentric may be made fast to the shaft when it is desired to throw its mechanism into gear. i

T represents standards, which are bifurcated and are bolted to the upper side of thebed, the feet of these standards being astride of the bearing-blocks H. In these standards is journaled a transverse shaft, U, having spurred pinions V,xed to its outer ends, which pinions mesh with the wheels L. Spurred wheels V are fixed to the shaft U on the inner sides of the standards T, and with these wheels WV mesh pinions X, that are fixed to a shaft, Y, that is journaled in the upper ends of the standards T. The shaft Y is also provided with a fixed driving-pulley, Z, and an idle-pulley, a. Balance-wheels b are fixed to the outer ends of the shaft Y.

c represents an angle-bending head, which is gibbed on the guides or ways O, and is connected to the eccentric by means of an eccentric-strap and connecting-rod, d, the outer end of which is pivoted between studs f, that are fixed or formed with the head c on its inner side and at the center thereof. Similar studs, ,f/,project from the inner side ofthe head c,near its outer ends, and in these studs g are pivoted rods It, which are bent inwardly, extend to, and are connected with the connecting-rod d. By means of these side rods h, it will be readily understood that the strain upon the head c will be distributed equally throughout its length from its center to its ends, and thereby the head will be strengthened sufficiently to enable it to withstand any strain to which it may be subjected. On the shorter lower ends of the guides or ways O is a punchinghead, t', which is provided on its outer face or side with the groove lc. The rear sides of the ends of the head z have rearwardly-extending lugs Z,which are formed with the head,andin between which are pivoted the connecting rods or arms m.

These arms are connected eccentrically to the ends of the sha-ft K and on that side of the center of said shaft corresponding with the eccentric S. When the machine is actuated, it will be readily understood that the heads c and fi will be reciprocated on the guides or IOO Ways C, the motion of said heads being alternate-that is to say, While one head is coming in contact With theresistance which is offered to it at one end of the bed by means of the plate that is to be bent or punchedthe opposite head Will be withdrawn from operation, and thus the strain upon the machine Willbe distributed alternately from one end to the other. By means of the lever P the head c may be thrown out of gear and the punching-head t allowed to continue in operation. n represents ahead that is bolted onthe guides or Ways C at one end, and bears against the lugs at that end of the bed, and this head is provided with a transverse slot on its face which opposes the'l face of thehead t'. slots la and o will be placed the shear for` cutting the iron plates, or' the puncl1ing-die,which, as they form no portion of my invention, are Ynot here shown nor particularly described. `i.\learA the ends of the guides or Ways C, and just beyond the face ofthe head a, are formed semicircular depressions 10, into which the Work falls after it has been cut or punched. y

Having thus described my invention, I clainr- 1. The combination,with the bed, the rotating shaft, and the eccentric, of the head e, having the rod d, for connecting it with the eccen- 3o tric, saidrodbeing pivoted'to the' center of the In the n head, and thebrace-rods h,which are pivoted to the ends of the head, and are connected to' tially as described.

3. The combination of the bedA, having the guides or Ways O, With the shaft K, j ournaled in blocks H, the sliding collarv N, the eccentric S, loose on thev shaft, the lever for operating the collar, the head c, connected tol the eccentric S, the head t', arms m, connected eccentrically to the ends of the shaft K, spurred Wheels L, fixed to the shaft K, standards T, shafts U, having pinions Vaud spurred wheels W, and shaft Y, having the driving-pulley,

'and the pinions X,.substantially as described.

In testimony that I claim the foregoing as' my own I have hereto affixed my signature in presence of two Witnesses.

'WILLIAM H. JOHNSON.

Witnesses:

En. F. DOWLING, v ALBERT S. RI'roHIE. 

